William augustus leggo



(No Model.)

W. A. LEGGO.

TELEGRAPHIU ALPHABET.

Patented June '7, 1887.

Z&

wow 79 UNITED STATES PATENT Garrett WILLIAM AUGUSTUS LEGGO, OF MONTREAL, QUEBEC, CANADA, ASSIGNOR TO JACKSON RAE AND JAMES CRADOOK SIMPSON, BOTH OF SAME PLAOE.-

TELEGRAPHIC ALPHABET.

SPECIFICATION forming part of Letters Patent No. 364,356, dated June 7, 1887.

Application filed June 526, 1886. Serial No. 206.362. (No model.)

To all whom it may concern: group by a defined space and being common n Be it known that I, WILLIAM AUGUSTUS to all the groups.

LEGGO, of the city of Montreal, in the district In the accompanying drawings, forming part of Montreal and Province of Quebec, Canada, of this specification, I show,in Figure 1,an at 5 haveinvented certain new and useful Improvephabet in which the letters are divided up into ments in Telegraphic Alphabets; and I do six groups, five consisting offive letters each, 45 hereby declare that the following is a full, and the last of the letter Z and sign 8:. Fig. clear, and exact description of the same. 2 represents the numeral and stop signs.

Myinvention consists in so framing thetele- Thus the letter D, being the fourth of the to graphic alphabet that the characters indicatfirst group,will be shown by one mark, then a ing the several letters shall be composed of one spaee,and then four marks,the one mark being so kind of mark or sign only, the difference in the sign of the group and the tour marks the the characters indicating the letters being number of the letter in it. The letter K, be-

marked by the grouping together and intering the first of the third group, is shown by r 5 spacing of these several signs. three marks, a space, and then one mark; and

As all marks,whatever may be their relative T,being the last letter of the fourth group, has 5 5 length, have the same significance, no error i'our marks, a space, and then five marks. can arise from the confusion of the dots and The numerals, understood also as stops or dashes of the European Morse code or the signs, are as shownin Fig. 2.

.20 dots, dashes, and spaces of the American Morse I am aware that in the English Patent No.

system. It has been found in practice in these 691 of 1877a telegraphic alphabet or code of 60 systems, and specially in their use in autosignals is show.n,consistingin oneinodification matic telegraphy, that the sign preceding a of dots combined with spaces, but in this break becomes to some extent prolonged, and case it is also clearly statedthat the marks are 25 in the case of a dot may easily be mistaken for produced alternately in two parallel lines. a dash, thus rendering thework u'nintelligi- I therefore disclaim this arrangement, what I 6 ble, and it is to remedy this'defect,among othclaim being as follows:

ers, that this alphabet is designed. A telegraphic alphabet or code consisting of I propose to divide up the letters of the algroups representing groups of letters of the 3c phabet into groups, each group being denoted ordinary alphabet, with different signs for by a distinct sign or combination common to each group, the several group-signs being com- 70 all the letters of its group. For instance, the mon to all the letters of these several groups, first group would be indicated by a single and with specific letter-signs for each letterot mark, the second by two marks, and so on. a group, the letter-signs being common to all 3 5 Each letter of the group will be indicated by the groups, substantially as described.

a distinct or specific sign or eombination- \VILLIAM AUGUSTUS LEGGO. such as one mark for the first, two marks for Witnesses:

the second, &C.lI-ll6 sign indicating the letter FRAS. I-IY. REYNOLDS,

being always separated from that showing the OWEN W. Evans. 

